John Singleton Is In A Coma

John Singleton’s stroke is way more serious than his family first revealed — it was a major stroke and he is in a coma — and TMZ has learned the family is in the process of establishing a conservatorship for him.

TMZ broke the story … Singleton suffered a stroke last week after returning from Costa Rica and experience problems with his legs.

He checked himself into Cedars Sinai Medical Center in L.A. and suffered a stroke Thursday in his hospital room.

We know he was in ICU as of last weekend, but family members characterized the stroke as “mild.”

According to the legal docs, obtained by TMZ, John’s mom, Shelia Ward, is asking a judge to appoint her temporary conservator because he is “unable to properly provide for his personal needs for physical health, food, clothing, or shelter.”

Singleton, 51, is an American film director, screenwriter, and producer best known for directing Boyz n the Hood.